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Date: Tue, 11 Dec 2007 17:50:02 +0100
From: Rene Herman <rene.herman@keyaccess.nl>
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To: Andi Kleen <andi@firstfloor.org>
CC: "linux-os (Dick Johnson)" <linux-os@analogic.com>,
       David Newall <david@davidnewall.com>, Paul Rolland <rol@as2917.net>,
       "H. Peter Anvin" <hpa@zytor.com>, Krzysztof Halasa <khc@pm.waw.pl>,
       Pavel Machek <pavel@ucw.cz>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
       "David P. Reed" <dpreed@reed.com>, linux-kernel@vger.kernel.org,
       Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
       rol@witbe.net, dpreed@reed.com
Subject: Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64
 with MCP51 laptops
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On 11-12-07 17:30, Andi Kleen wrote:

> Anyways it looks like the discussion here is going in a
> a loop. I had hoped David would post his test results with
> another port so that we know for sure that the bus aborts 
> (and not port 80) is the problem on his box. But it looks like
> he doesn't want to do this. Still removing the bus aborts
> is probably the correct way to go forward.

Yes, I do also still want to know that. David (Reed)?

> Only needs a patch now. If nobody beats me to it i'll
> add one later to my tree.

Pavel Machek already posted one. His udelay(8) wants to be less -- 1 or "to 
be safe" perhaps 2.

http://lkml.org/lkml/2007/12/9/131

Rene.